Retell AI
UK SOFTWARE PROFILE
Retell AI
Configurable phone-agent platform with external telephony integration, detailed transfer controls and versioned agents.
One product. Different jobs.
Each score uses that category's criteria. Compare products within a category, rather than comparing scores across unrelated tasks.
Pricing & practicalities
Model your total cost ↗Published starting point
AI voice agents
Request pricingPay as you go · configured voice minute · usage billing
VAT basis not stated
The published headline range is US$0.07–0.31/minute; model, voice and add-ons vary. Quote the actual configuration and carrier.
Check current price ↗Consider before choosing
- Managed number purchases are limited to US/Canada; UK deployments need an independently verified carrier route.
- Voice, language model, telephony and optional QA costs can accumulate.
Connected workflows
- Twilio SIP
- Telnyx SIP
- Vonage
- HubSpot workflows
Confirm the integration's direction, permissions, plan and sync behaviour with the supplier.
BEHIND THE AI CLAIM
AI capabilities
Conductor assists agent building and investigation; voice behaviour is configurable and optional QA analyses calls.
Documented capabilities
- Conversational phone agents
- Natural-language agent editing
- Call-quality analysis add-on
Plans, limits & questions
- Conductor has daily allowances and optional paid usage.
- Carrier capabilities constrain transfer behaviour.
Feature-by-feature evidence
AI voice agents — 20 scored checks
| Capability & demo question | Retell AI51–100/100 documented fit |
|---|---|
Core workflowInbound telephone calls7.0 points availableAsk in the demoCall the proposed number and speak to the agent. | ✓ Supported SIP trunk integration receives calls. 7.0 / 7.0 pointsEvidence ↗ |
Core workflowEnglish voice conversations7.0 points availableAsk in the demoComplete an unscripted English exchange using the intended voice. | ✓ Supported English is a configurable agent language. 7.0 / 7.0 pointsEvidence ↗ |
Core workflowBusiness knowledge answers7.0 points availableAsk in the demoAsk a question whose answer appears in an approved business source. | ? Not verified Exact workflow not verified in the reviewed material; request a demonstration. 0.0–7.0 / 7.0 points |
Core workflowLive system actions7.0 points availableAsk in the demoCheck availability or retrieve a record during a call. | ? Not verified Exact workflow not verified in the reviewed material; request a demonstration. 0.0–7.0 / 7.0 points |
Core workflowHuman call transfer7.0 points availableAsk in the demoAsk for a person and complete the transfer. | ✓ Supported Cold, warm and agentic warm transfers are documented. 7.0 / 7.0 pointsEvidence ↗ |
Workflow depthDocumented UK number route4.0 points availableAsk in the demoShow UK number provision or a supported import/trunking route for the deployment. | ? Not verified Direct purchase is US/Canada only. A UK carrier route is not yet verified. 0.0–4.0 / 4.0 pointsEvidence ↗ |
Workflow depthInterruption handling4.0 points availableAsk in the demoInterrupt the agent mid-sentence and change the request. | ? Not verified Exact workflow not verified in the reviewed material; request a demonstration. 0.0–4.0 / 4.0 points |
Workflow depthKeypad or IVR handling4.0 points availableAsk in the demoUse or navigate a keypad-driven step where the workflow needs it. | ✓ Supported Warm transfer can navigate destination IVR. 4.0 / 4.0 pointsEvidence ↗ |
Workflow depthTransfer with context4.0 points availableAsk in the demoPass a summary or relevant call data to the receiving person. | ✓ Supported Whisper debrief privately briefs the receiving agent. 4.0 / 4.0 pointsEvidence ↗ |
Workflow depthNo-answer transfer recovery4.0 points availableAsk in the demoMake the destination unavailable and inspect the fallback. | ✓ Supported Agentic transfer timeout can cancel or bridge. 4.0 / 4.0 pointsEvidence ↗ |
Workflow depthControlled outbound calling4.0 points availableAsk in the demoInitiate an authorised outbound call and show recipient controls. | ✓ Supported Imported SIP numbers can originate calls. 4.0 / 4.0 pointsEvidence ↗ |
Workflow depthRecordings and transcripts4.0 points availableAsk in the demoLocate a call's recording and readable transcript. | ? Not verified Exact workflow not verified in the reviewed material; request a demonstration. 0.0–4.0 / 4.0 points |
Workflow depthStructured post-call results4.0 points availableAsk in the demoExtract an agreed field or disposition from the call. | ? Not verified Exact workflow not verified in the reviewed material; request a demonstration. 0.0–4.0 / 4.0 points |
Workflow depthPost-call webhooks4.0 points availableAsk in the demoDeliver the call result to a CRM or workflow. | ? Not verified Exact workflow not verified in the reviewed material; request a demonstration. 0.0–4.0 / 4.0 points |
Workflow depthSafe testing before deployment4.0 points availableAsk in the demoTest a changed agent separately from live traffic. | ✓ Supported Version tags separate deployed agent configurations. 4.0 / 4.0 pointsEvidence ↗ |
Workflow depthRecording and data controls5.0 points availableAsk in the demoShow retention or recording controls for the account. | ? Not verified Exact workflow not verified in the reviewed material; request a demonstration. 0.0–5.0 / 5.0 points |
Workflow depthCapacity and cost controls5.0 points availableAsk in the demoExplain concurrency, queued calls and the full per-call cost. | ✓ Supported Pricing lists 20 included concurrent calls and extra capacity. 5.0 / 5.0 pointsEvidence ↗ |
AIVoice and conversational tuning5.0 points availableAsk in the demoConfigure voice or turn-taking behaviour for the use case. | ? Not verified Exact workflow not verified in the reviewed material; request a demonstration. 0.0–5.0 / 5.0 points |
AIAI-assisted agent configuration5.0 points availableAsk in the demoDraft or revise the agent from a plain-language instruction. | ✓ Supported Conductor creates and refines agent configuration. 5.0 / 5.0 pointsEvidence ↗ |
AIAutomated call-quality analysis5.0 points availableAsk in the demoRun configurable evaluation criteria over completed calls. | ? Not verified Exact workflow not verified in the reviewed material; request a demonstration. 0.0–5.0 / 5.0 points |
“Not verified” means the recorded evidence does not settle this specific check. It does not mean the feature is absent. Read the scoring method.